jaeger



(No Model.)

G. L. JAEGER.

SPRING HINGE. No. 251,591. Patented' 1160-. 27,1881.

STATES PATENT erica SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 251,591, dated December27, 1881.V

Application filed September 3, 1881. (No model.) l

To all whom it may concern VBe it known that l, GUSTAV L. JAEGER, a

citizen of the United Sta-tes, residing at New York, in the county andState of New York,

have invented new and useful lmprovementsin Spring-Hinges, of which thefollowing is a specification.

This invention relates to that class of springhinges which consist oftwo leaves and a torsional spring composed of a hat strip ot' metaladapted to be twisted by turning one of the leaves, whereby thetorsional action ot` the metal plate will act to return the leaf to itsnormal position.

The objects of my invention are to simplify the construction of thisclass of hinges and to reduce the cost ot' manufacturing the same,whereby an efticientbut comparatively inexpensive hinge can befurnished, which is especially adapted for the lids of boxes. Thisobject l accomplish by the construction of parts illustrated in theaccompanying drawings, in which- Figure 1 represents aperspective viewof my hinge when made of sheet metal. Fig. 2 is a transverse section ofthe same in the plane x m, Fig. l. Fig. 3 is a detached view of thetorsional pintle. Fig. 4 is an end view of the same. Fig. 5isa-perspective view of myhinge having wooden leaves. Fig. 6 isatransverse section in the plane yy, Fig. 5. Fig. 7 is a similar sectionin the plane z z, Fig. 5. Fig. S is adetached view of the torsionalpintle used for the hinge. Fig. 9 is an end view ot' the same. Fig. l0is a sectional face view of a hinge with a hollow pintle. Fig. 11 is anend View ot' the same.

Similar letters indicate corresponding parts.

In the drawings the letter A designates a hinge, the leaves a a. ofwhich are made of sheet metal and provided with interlocking eyes b b',through which extends the piutle B. This pintle is made of metal wire,and after it has been passed through the eyes b b its ends c c are bentand fastened one end to the leaf a and the other to the leaf a. Intheexample shown in Fig. lof the drawings the leaves a a are made ot'double layers ot' sheet metal, and the ends c c ofthe torsional pintle Bare bent over twice, as shown in Fig. 3, so that they can be made tocatch between the two layers ofthe leaves, as indicated in dotted linesin Fig. 1.

If the parts lto be hinged are made ot' wood, as shown in Fig. 5, theeyes b b are formed by means of staples, which are driven obliquely intothe wood, (see Figs. G and 7,) so that the pintle B can pass throughthem, as shown in Fig. 5. rlChe ends c c ofthe pintle are simply bentand driven one into the part a and the other into the part a. The part amay represent the body of a box and the part a the cover, the two partsbeing connected by the torsional pintle and the two eyes.

ln both examples shown in the drawings the torsional pintle is appliedto the leaves or parts a a ot' the hinge in such a manner that it has atendency to throw said leaves open, and that if the leaves are closed,the pintle is twisted, so that when the leaves are released thetorsional force of the pintlc throws the same open.

It will be readily seen from y the above description that my torsionalpintle can be applied to the leaves a c of the hinge in such a mannerthat it has a tendency to keep said leaves closed, and that the ends ofthe pintle can be connected to theleaves'in a great many different wayswhich will readilysuggcst themselves to any mechanic of common sense.

It short heavy hinges are required, anumber of my spring-pintles may beemployed in lthe same hole side by side, thereby giving the necessaryelasticity, which a short and heavy spring-pintle would not give; or forheavy hinges a hollow pintle,d, maybe used, through which extends thetorsional spring B, the ends c c of which are connected to theleaves c aof the hinge, respectively, as shown in Figs. 10 and 1l.

Heretofore springhinges have been constructed of two leaves and a met-alplate composing the torsional spring, which is attached at its ends toindependent plugs, inserted in the ends of a spindle which connects thetwo leaves together, said plu gs being connected respectively with thetwo leaves ofthe hinge by means of transverse pins passing through theplugs and the eyes on the leaves. Springhinges have also been composedof two leaves, a connectingfpintle, and acoiled spring wound around thepintleandhavingitsends connected respectively'with the two leaves. Suchcon- IOO struction of hinges, however, not being myina hinge havinginterlocking eyes connected by vention, is not here claimed.

What I claim as new, and desire to secure by Letters Patent, is-

5 1. A spring-hinge combining in its structure two leaves havingprojecting eyes and a connecting torsional pintle consisting of a Wireextending through the said eyes and serving to connect the leaves andhaving its projecting 1o ends bent and attached directly to the saidleaves ofthe hinge, substantially as described. 2. The combination, withthe two leaves of a tube, of a torsional spring consisting of a Wireextending through the tube and having I5 its projecting ends bent andrespectively acting on the leaves, substantially as described.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribin g witnesses.

GUSTAV L. JAEGER.

Witnesses:

W. HAUFF, E. F. KASTENHUBER.

